Belt-hook-making device



@m. M mm. 31511355 W. F. MORRHSON BELT HOOK MAKING DEVICE Filed March 18,, 1922 2 swam-sum. 1

Oct, Mo 2924.

W. F. MORRESON BELT. HOOK MAKING DEVICE Filed March 18. 2 2 Sheets-Sheet 2 Patented Oct. 14, 1924.

. UNITED STATES PAT NT OFFICE.

WILLIAM F. MORRISON, OF ST. LOUIS, MISSOURI, ASS IGINOR TO NORTHWESTERN MACHINE CORPORATION, OF ST. LOUIS,-. MISSOURI, A CORPORATION OF MISSOURI.

IBELT-HOOK-MAKING DEVICE Application 111m March 18, 1922. a... in). 544,806.

T all whom it may concern:

Be it known that I, WILLIAM F. Monm- SON, a citizen of the United States of America, and a resident of the city of St. Louis and State of Missouri, have invented certain new and useful Improvements in a Belt- Hook-Making Device, of which the followingr is a specification.

his invention relates to an improvement in machines for making belt hooks from a metallic strip as it is automatically moved along beneath a'set of punches and relatable dies, and in which the completed belt hooks will be discharged at the end of the machine opposite to which the metal strip 'is fed into the machine.

Another object of the invention is to provide an improved machine for the manufacture of belt hooks in which the waste at.

tendant upon the making of each hook is reduced to the minimum.

A further object of the invention is to provide an improved form of feeding mechanism for the strip of metal from which the belt hooks are made, which will also feed the blanks which are severed from the metal strip to the former block.-

Other and further objects will appear in the specification and be specifically pointed out in the appended claims, reference being had to the accompanying drawings,'exemplifying the invention, and in which Figure 1 isa side elevation of this improved machine.

Figure 2 is a plan view of the die-plate and bed-plate therefor.

Figure 3 is a view similar to Fig. 1, partly in section and showing the punches in operative relation with their respective dies.

Figure 4 is an inverted view of the punch carrying plate showing the guiding posts therefor in section, said View being on a reduced scale.

Figure 5 is a detail vie-w of the castingotf mechanism for singly discharging the belt hooks after completion.

Figure 6 is an enlarged perspective view of one of the completed belt hooks.

Figure 7 is an enlarged view of a cut awa portion of the material strip which is cut om between a pair of belt hook blanks.

With reference to the accompanying drawings 1 designates the punch holding plate from which an elliptical shaped punch 2 is depended, land located thereadjacent is a. print impression 'stud'2 and depended from said 'plate adjacent said stud is a gaging member 3.

The -punch 2, tud 2 and member '3 are'arranged in longitudinal alinement, and locat- 6 having depending portions 6 which are v adapted to straddle the former block 33.

Depended from the holding late 1 is a cam operating rod 7 and passing through said plate adjacent said rod is a stripper plunger 8 having a portion 8" which is located between the pair of depending portions 6 of the former 6, and mounted on said plunger.8 is a coil spring 9 bearing at one end against the upper side of the plate 1 and at its opposite end against a shoulder 9 The shoulder 9 of the plunger 8'is adapted to bear against the bracket 10 which is secured to the stationary die-press frame 11.

Secured to and extending from the punch holding plate "1 is an arm 12 provided with a vertlcally arranged opening 13 in its outer end through which is engaged an adjustable member 14 having setting nuts 15, said member having a yoke 16 formed at its lower end.

Pivotally secured to the yoke 16 of the member 14 is one end of a lever 17, said lever having its opposite end rigidly secured to a rock-shaft 18 which is horizontally supported in a sleeve 22.

The sleeve 22 is supported from the dieplate 20which is arranged horizontally beneath the punch holding plate 1, said dieplate 20 being secured to the die-press bed 11' by the cap screws 11".

Vertically extended from the die-plate 20 on one side thereof are a pair of guide posts 21, which are engaged within respective openings 21" which are formed in the punch holding plate 1,-to prevent operative displacement of said die-plate and said punch holding plate when the latter is vertically reciprocated, said punch holding plate being supported from the reciprocable stock-shaft 19 of the die-press frame 11.

Rigidly secured to one end of the rock shaft 18 is a driving arm 23, said armat its extending end being pivotally secured to the yoke 24 of a connecting rod 25 which is connected at 26 to a feed carriage 26, and secured to said carriage is a projection'27 to which is secured a detent 28, said detent being provided with a pair of engaging portions which are designated as 28 and 28, and downwardly bearing against said detent 28 is a leaf-spring 29 which is also borne by the carriage 26.

' Formed in the the late 20 in vertical alinement with the puc formed insaid plate and directly beneath the gaging member 3 is a seat 31, and for co-operation with each of the shearing punches 4 is a respective seat 32, said seats 32 also being formed in the dielate 20, An opening or seat is also provi ed in the die-plate for the reception of the gaging member 5.

The former'block 33 is supported from the die-plate 20, and located thereadjacent is a stop gage 35 which protrudes upwardly to a plane above said former block and is arranged in longitudinal alinement with the seats 30 and 31, and arranged on each side of said stop'gage is a lug 38 for the support of a horizontal extending rock-shaft '38. Rigidly secured to said rock-shaft 38 between the lugs 38' is a cast-01f pan 37, and

secured to one end of'said shaft is a cam 39, said 'cam being arranged in alinement with and beneath the cam operating rod 7, and

' 31 and extending to a point adjacent the seats 32 of the die-plate 20' is a guide bar 47 said guide bars being secured in their spaced apart relation on said die-plate by the cap screws 47 said spaced relation. of said guide bars providing a feed-way 46 for the reeep- 'tion of the metal strip fromwhich the hooks are to be formed.

A stripper-plate 44 is arranged above the guide bars 47, said plate being slotted longitudinally as designated at 45 or the assage of the punch 2, member 3 and ,s earin punches 4 as well as for the reciprocation. o the detent 28. a

A guide way for the reciprocation of the carriage 26 is provided on the die-plate 20 between a portion of the stripper plate 44 and a guide block 43.

In the operation of thisimproved machine the metal strip 46 is hand fed into the feed way 46, said stri being the a proximate width of said fee way, and in the first op- .ther along the feed-way 46 unti 2 is a seat 30, and

first opening A made in'said stri eration the punch 2 upon descending co-operation with the seat 30 will form an elliptical shaped opening in the forward portion of the fed in strip. In the ascending operation of the punch holding plate 1 the forward portion of the metal strip is fed furthe opening A just formed is positioned in vertical alinement with gaging member 3 and the co-operable opening 31, and inasmuch as said member 3 is longer than the punch 2 said member will enter the opening A in the material strip at a time prior to theengagement of the punch 2 with the material strip, said-- member 3 being in entry with the opening A of said strip will thereby firmly hold said strip against displacement while the punch 2 is forming a second opening in the material strip.

During the next ascendin stroke of the punch holding plate 1 in which the stripper plate 44 will clear the punch 2 and member 3, the material strip is moved further along the feed-way 46 until the second opening just made is positioned in alinement with member 3 so that said member onits next descending stroke will enter into the second entry made in the material strip, said member 3 again holding the material strip from displacement while the punch 2 is-forming a third opening in the material strip.

Upon the next return upward movement of the punch holding plate 1 the material strip 46 is again moved forwardly along the feed way 46 until the second opening just'made is placed in a position of alinement with the member 3 and its relatable seat 31 ready for the descending of said member 3 and the punch 2, and from the showing of 3 of the drawings, when material strip is again moved forward the will be engaged by the portion 28 of the etent 28. The aforesaid operation relates merely to the starting and locating of the forward of the material strip within the machine, and after the first opening A formed in the material strip has been engaged by the portion28 of the detent 28, the upward travel of the punch holding plate 1 will cause the arm 12 to move upwardly, the

lever 17 thereby rocking the shaft 18 and moving the driving arm 23 inwardly, upon which the connecting rod 25 will operate the carriage 26 inwardly and towards the former block 33, and coincident therewith the" portion 28 of the detent 28 will exert a pu ling thclmaterial strip: farther into the machine so that the last opening made will be moved to a position of alinement with the member 3 ready for the descending entry thereof. I

During the next descending operation of the punch holding plate 1 the lever 17 will pull on the material strip 46", thereby lit) be forced downwardly by force borne thereagainst, the arm12 thereby moving the driving arm 23 outwardly and pulling the carriage 26 rearwardly so that the engaging portion 28 of the detent 28 will be brought to a position of engagement within the next succeeding formed opening of the material strip.

During the rearward or return movement of the carriage 26, approximately simultaneous with the operation of the punch 2 on the material strip, the shearing punches 4 become active on the opposing side edges of the forward part of the strip and in straddling relation to thewidest part ,of the first opening made in the strip thereby servering a portion B from the strip, and as the punch holding plate 1 is returned upwardly by the stock shaft 19 of the die-press the forward portion 28 of the detent 28 Wlll engage and move the separated portion B of the material strip onto the former block 33.

During the operation of the shear ng punches 4 on the material strip the gaging member 5 while in engagement with the opening 5 of the die-plate 20, is also holding the forward portion of the strip be ng severed against being mispositioned during the shearing operation of the punches 4, said gaging member 5 holding the forward end of the strip at 5 as shown in Fig. 2.

Each portion which is severed by the punches at from the material strip then assumes the form of a blank as designated at 36, and'i'n the proper operation of the machine a blank 36 is cut away from the forward end of the material strip 46* and simultaneous with the operating of the.

punch 2 on the material strip, and during the upward travel of the punch holding plate 1 a blank 36 is also pushed upon the former block 33 in abutment with the stock gage 35. On each downward stroke of thepunch plate 1 the former 6 will be brought to bear against a blank 36 which is located on the former block 33, the depending portions 6 of said former 6 bending the pairs of prongs 34 of each blank 36 downwardly thereby providing a finished belt hook as designated at C in Figs. 1 and 6.

After the former 6 has bent the prongs 34 on each blank 36, said former is carried upwardly with the punch plate 1, and during the upward travel of said plate the shoulder 9 of the plunger 8 will engage the bracket 10 and hold said plunger against further upward movement. Such holding of the plunger 8 will force the portion 8 from between the portions 6 of the former 6 and thereby discharge the blank 36 from its clinging engagement with said former 6.

In this position of discharge, of the portion 8 of the plunger 8, the cast-off pan 37 which was moved to an approximate position beneath theformer 6 and above the former block 33, will receive the discharged completed belt hook 36 or C, and on the return downward movement of the punch holding plate 1 the cam operating rod borne thereby will engage against the flat surface of the cam 39, thereby operating said cam and rocking the shaft 38 and tilting the castoif pan 37 to the position shown in dotted lines in Fig. 5, thereby discharging the finished belt hook from the open end of said an. P On the next upward movement of the punch holding plate 1, the rod 7- would move upwardly from engagement with the cam 39 thereby allowing the spring 40 to return the shaft 38 and pan 37 to the position wherein said pan will catch a succeeding finished belt hook.

From the aforesaid description of this improved belt hook making machine is to be noted that an entire met-al strip length is made wholly into belt hooks, the only waste thereof being that of the portions cut out by the operation of punches 2 and 4, and in addition thereto improved gaging and holding means are provided for holding the material strip securely in position during each succeeding operation attendant upon the complete manufacture of this improved former belt hook.

The above cutaway portion referred to is that disclosed in Fig. 7 and designated as D, the peculiar shape thereof being for the purpose of providing another but smaller belt hook therefrom which is done by feeding into a die-press equipped with a double or straddling punch which will cut out bifurcated portions at each end as designated by dotted lines E in said figure thereby providing prongs 34 which are afterwards bent by a former as are the prongs 34 of the blank 36.

What I claim is 1. In a belt hook making machine, the combination of guiding means for a metallic strip, means for advancing said metallic strip along said guiding means, means for forming elongated openings in said metallic strip as it is intermittently stopped during its travel along said guiding means, and means located adjacent said guiding means for forming opposed i-shaped incisions in said metallic strip which meet with the elongated openings thereof.

2. In a belt hook making machine, the combination of guiding means for a metallic strip, means for advancing said metallic strip along said guidin means, means for forming elongated openings in said metallic strip as it is intermittently stopped during its travel along said guiding means, and means located adjacent said guiding means for forming opposed V-shaped incisions in said metallic strip which meet with the elongated openings thereof thereby providing severed blanks, and bending means for operating on saidblanks. v

3. In a belt hook making machine, the combination with guides and pushing means for advancing a strip of metallic material between said guides, means for forming elongated openings in said material strip, depended means for co-operative engagement with each opening of said material strip for positioning said material strip for a succeeding opening torming operation,.

* therein which intersect with a respective opening of said material strip thereby providing separated prong bearing blanks, and forming means for bending'the prongs of said blanks.

5. Ina belt hook making machine, the combination with guides and pushing means for advancing a strip of metallic material between said guides, depending means for forming elongated openings in said material strip, depending means for co-operative engagement with each opening of said material strip for positioning said material strip for a succeeding opening forming operation, and oppositely disposed shearing punches adapted to straddle said material stri and provide approximate V-shaped incisions therein which intersect with a respective opening of said material strip thereby pro-- viding separated prong bearing blanks, and forming means for bending the prongs of said blanks, and a swingable receiving pan for receiving each blank after its discharge from said forming means.

6. In a belt hook making machine, the combination with guidin means for the reception of a strip of meta lic material, a vei tically reciprocal plate, a perforating punch for operating on said material strip depended from said plate, pushing means for strip and intersecting with each perforation thereof.

7. In a belt hook making machine, the combination with guiding means for the reception of a strip of metallic material, a vertically reciprocal plate, a. perforating punch for operating on said material strip borne by said plate, pushing means having a portion for engagement with each perforation made in said material strip for advancing said material strip along said guiding means, and a pair of oppositely disposed V-shaped shearing punches for operating on opposing edges of said material strip and intersecting with each perforation thereof thereby providing separated blanks from said, material strip, said pushing means also having a portion for engaging each separate blank, and a former block for the reception of each of said blanks.

'8. In a belt hook making machine, the combination with guiding means for the reception of a strip of metallic material, a vertically reciprocal plate, a perforating punch for operating on said material strip borne by said plate, pushing means for engagement with each perforation made in said material strip for advancing said material strip alon said guiding means, a pair of oppositely isposed 'V-sha'ped shearing punches for operating on opposing edges of said material strip and intersecting with each perforation thereof thereby providing separated blanks from said material strip, said advancing means also adapted to engage each severed blank, a former block for the reception of each of said blanks, a form er borne by said plate for straddling said former block and bending the opposing extending ends of each blank, and a receiving pan movable beneath said former during the return movement thereof.

WILLIAM F. MORRISON. 

